fish species

NOUN
12 LETTERS · STARTS WITH F

fish species is a valid 12-letter word worth 21 points in Scrabble and 22 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
F4I1S1H4S1P3E1C3I1E1S1
4 + 1 + 1 + 4 + 0 + 1 + 3 + 1 + 3 + 1 + 1 + 1 =21 PTS
DOUBLE WORD → 42TRIPLE WORD → 63
MEANING

What does fish species mean?